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Патент USA US3081056

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Margh 12, 1963
G. L. HARTMANN
3,081,040
SPRAY HEAD
Filed Dec. 15, 1961
INVENTOR.
GILBERT L. HARTMANN
BY
WMZW
United States Fatent Giles
1
2
3,681,040
series of circumeferen-tially spaced peripheral notches 11
and with an intervening series of circumferentially spaced
peripheral sockets 12, the spacing of which is the same
SPRAY HEAD
,
Gilbert L. Hartmann, White?sh Bay, Wis, assignor to Mil
waukee Faucets, Inc, Milwaukee, Wis.9 a corporation
of Wisconsin
WW4"
Patented Mar. 12, 1963
'
Filed Dec. 13, 1961,'Ser. No. 15%,108
7 Elainls. (Cl. 239-457)
This invention relates generally to improvements in the
art of creating liquid spray, and it relates more speci?
cally to improvements in the construction and operation
of spray heads especially adapted for use in shower bath
installations.
The primary object of the present invention is to pro
vide an improved liquid spray device which is simple in
structure and efficient in operation.
Some of the more important and speci?c objects of the
as that of the casing lugs 8; resilient means such as a
helical compression spring 13 interposed between the
plate 10 and the ball member 9 for simultaneously retain
ing the ball against the casing seat 7 and the casing lugs
8 seated within the sockets 12; and -a liquid spray dis
charge regulating disk 14 adjustably secured to the
plate 10.
‘
The casing 6 is preferably made of sheet metal and is
tapered toward its open end remote from the ball seat 7,
and the lugs 8 are formed integral with the casing wall
somewhat above its open lower annular end 16.
The
ball suspension member 9‘ is preferably made of metal
and is provided with a central passage 17 for admitting
liquid into the casing interior, and this member 9 also has
a screw-threaded portion 18 for attaching it to a liquid
supply conduit, see FIG. 1. A ?exible sealing ring 19
bodies a minimum number of simple parts adapted to be 20 coasts directly with the ball of the member 9 and is en
gaged by a metal ring element 26 with which one end of
readily manufactured and assembled or dismantled.
the spring 13 coacts to constantly force this ball into
To provide an improved shower head which may be
sealing engagement with the casing seat 7, and the op
conveniently adjusted to deliver liquid spray in any de
posite end of this spring reacts against the locking plate
sired direction with variable intensity, and in which tob
10. While the ball 9 affords a swivel suspension for the
jectiona-ble leakage or dripping of liquid is eliminated.
spray head, this ball may be replaced by a ?xed member
. To provide a compact and simple spray head composed
having a water inlet conduit therein without departing
of a minimum number of parts which may be produced
from the invention.
at moderate cost from durable materials, which will resist
The plate It)‘ is an important part of the present im
excessive wear and thus avoid necessity for rapid replace
provement, and it may be made of metal or durable
ment, and in which the spray producing components are
plastic of a diameter slightly less than the internal diam
especially resistant to the action of hard Water and lime
eter of the tubular casing 6, see FIGS. 1 to 4 inclusive.
deposits.
This plate 10 besides having the peripheral notches 11
To provide an improved shower nozzle of the univer-'
and sockets 12 formed therein is provided with a plurality
sally movable ball suspended type wherein the ball joint is
of holes 22 for permitting relatively large liquid jets to
positively locked against possible separation when the de
?ow therethrough, and with a central integral hub 23 and
vice is in use, and which is relatively tamper-proof after
invention are as follows:
To provide an improved shower spray head which em
assembly.
These and other objects ‘and advantages of the inven
tion will be apparent from the following disclosure.
A clear conception of the features constituting the pres
ent improvement, and of the construction and operation
of a typical spray shower head embodying the invention,
may be had by referring to the drawing accompanying
integral ‘spring centering ribs 24 radiating from the hub.
Each of these ribs 24 is formed as shown in FIG. 1 in
order to maintain the helical spring 13 perfectly centnal
ized within the tubular casing 6, and the ribs ‘also reinforce
the plate 10 and prevent distortion thereof.
The spacing of the plate notches 11 and of the plate
sockets 12. is such that the plate 10 may be bodily inserted
within the casing 6 and pressed inwardly to compress the
and forming ‘a part of this speci?cation in which like ref
erence characters designate the same or similar parts in 45 spring 13 when the notches are in alignment with the lugs
8, and the plate 10 may then be rotated after the lugs 8
the various views.
‘
have passed through the notches 11, and the pressure
FIG. 1 is a central vertical section through one of the
may be subsequently released to cause the spring '13 to
improved spray heads, but showing a part of the spray
force the sockets 12 over and against the casing lugs S as
adjusting disk in elevation;
FIG. 2 is a part sectional bottom View of the same spray 50 shown in FIG. 1. The plate 10 will thereafter be locked
in position to con?ne the spring 13 and ring 19 within the
head, the section having been taken along the line 2-2
casing and the suspension ball against the seat 7, but the
of FIG. 1;
assemblage may be just as readily dismantled by reversing
FIG. 3 is a transverse horizontal section through the
the foregoing operations, all of which can be eifected by
same spray head taken along the line 3--3 of FIG. 1; and
FIG. 4 is a side elevation of the spring and ball joint 55 assemblymen without the aid of special tools.
The water ?owing through the openings 22 is conducted
locking plate of the same spray head.
to the space ‘between the plate 10 ‘and the liquid spray
While the invention has been shown and described
discharge regulating disk 14 which may also be con
herein as having special utility when embodied in spray
structed of metal or durable plastic and this disk 14 is
heads for shower bath installations, it is not intended to
limit the use of the improvements to such shower heads; 60 provided with an integral central screw-threaded spindle
26 adapted to snugly coact with internal screw threads
and it is also contemplated that speci?c descriptive terms
formed in the hub 23 of the locking plate 10'. The disk
employed herein be given the broadest possible interpreta
14 also has a series of small spray openings 27 and an
tion consistent with the disclosure.
Referring to the drawing, the typical spray head shown
annular series of peripheral spray grooves 28 therein, the
therein by way of illustration comprises, a tubular casing
latter being inclined toward the interior of the casing 6
6 having a spherical zone seat 7 at one end and a series
and cooperable with the annular casing end 16 to vary
of circumferentially spaced inwardly directed lugs 8 re
the spray intensity when the disk 14 is rotated relative
to the plate 10. When the disk 14 is adjusted toward
mote from the seat 7; a hollow ball member 9‘ co-acting
with the seat 7 to vprovide a universally adjustable liquid
the interior of the casing 6, the sprays delivered through
admission support for the casing 6; a plate 10 normally
the grooves will‘diminish in intensity and vice versa, and
con?ned within the casing 6 and being provided with a
in order to facilitate rotary adjustment of the disk 14, it
3,081,040
3
is provided with an integral transverse gripping ?ange 29
as shown in FIGS. 1 and 2.
While the coacting screw threads of the disk spindle 26
and plate hub 23 may be of su?iciently tight ?t to permit
rotary adjustment of the spray regulating disk 14 while
still preventing ready complete removal of this disk, the
disk 14 may also be positively attached to the plate 16 by
means of a screw 30 driven centrally into the free end of
4
casing lugs seated within said plate sockets, and a liquid
spray discharge regulating disk adjustably secured to said
plate.
3. A liquid spray head comprising, a tubular casing
having a ball seat at one end and a series of equally cir
cumferentially spaced inwardly directed lugs near its op
posite open end, a hollow ball member coacting with said
casing seat to provide a universally adjustable liquid ad
mission support for said casing, a plate normally con?ned
the hub 23, see FIGS. 1 and 3. This stop screw 36 pre 10 within said casing but being rotatable and provided with a
the spindle 26 and slightly overlapping the adjacent end of
vents tampering and possible theft while still permitting
the disk
distance
vary the
and this
14 to be adjusted outwardly of the casing 6 any
within the length of the grooves 22 in order to
intensity of the spray delivered from the nozzle,
feature is especially valuable in public installa 15
tions. When the stop screw 30 is utilized it must either be
applied through the inlet 17 of the ball or before the
locking plate 10 is inserted within the casing in which
case the spray disk 14 is used to effect assembly of the
spray head, the screw then positively preventing removal
of the disk 14 without ?rst releasing the plate 10.
From the foregoing description, it will be apparent that
the present invention provides a compact and simple spray
head Which is highly ?exible and effective in use and may
series of circumferentially spaced peripheral notches and
with an intervening series of circumferentially spaced
peripheral sockets, the spacing of said notches and sockets
being the same as that of said lugs, a helical compression
spring interposed between said plate and said member for
holding the ball against said casing seat and said lugs with
in said sockets, and a liquid spray discharge regulating
disk adjustably secured to said plate and coacting with
said opposite casing end, said plate being freely insertable
within and removable from said opposite casing end when
the plate is forced inwardly to release said lugs from said
sockets and is rotated to bring said notches in alignment
with the plate notches.
4. A liquid spray head comprising, a tubular sheet
be readily assembled or dismantled when necessary. After 25 metal casing having a ball seat at one end and a series of
the plate 10 is snapped into place, it positively maintains
the shower nozzle in assembled condition and prevents
possible separation of parts while the device is in use; and
equally circumferentially spaced inwardly directed lugs
near its opposite open end, a hollow metal ball member
coacting with said casing seat to provide a universally ad
justable liquid admission support for said casing, a plastic
an e?‘icient seal and to eliminate leakage between the ball 30 plate normally con?ned within said casing but being ro
suspension member 9 and the casing 6. The ?exible seal
tatable and provided with a series of circumferentially
ing ring 19 is reinforced and protected by the metal ring
spaced peripheral notches and with an intervening series
element 20 with which the spring 13 coacts, and this spring
of circumferentially spaced peripheral sockets, the spacing
is maintained in central position within the casing 6 by
of said notches and sockets being the same as that of said
the ribs 24 which also serve to reinforce the plate 10. 35 lugs, a ?exible sealing ring coacting with the ball of said
While the nozzle unit may be readily initially assembled,
member, a helical compression spring interposed between
it can only be dismantled for internal inspection or re
said plate and said ring for holding the ball against said
it also cooperates with the spring 13 and ring 19 to produce
placement of parts with somewhat more dif?culty due to
casing seat and said lugs within said sockets, and a plastic
the use of the stiff spring 13, and when the stop screw 30
liquid spray discharge regulating disk adjustably secured
is provided the spray disk 14 is tamper-proof and cannot 40 to said plate and coacting with said opposite casing end,
be removed from the assemblage without ?rst releasing
the plate 10 from the lugs 8 of the casing 6. Also, by
forming the plate 10 and disk 14 of suitable plastic, these
said plate being freely insertable within and removable
from said opposite casing end when the plate is forced in
parts are highly resistant to lime deposits and corrosion _
tated to bring said notches in alignment with the plate
wardly to release said lugs from said sockets and is ro
otherwise resulting from the action of minerals and the 45 notches.
like carried by the water.
5. A liquid spray head comprising, a tubular casing
Various modes of carrying out the invention are con
templated as being within the scope of the following
claims particularly pointing out and distinctly claiming
having a ball seat at one end and a series of circumfer
entially spaced inwardly directed integral lugs remote from
said ball seat near its opposite open end, a hollow ball
the subject matter which is regarded as the invention:
50 member coacting with said casing seat to provide a uni
I claim:
versally adjustable liquid admission support for said cas
1. A liquid spray head comprising, a tubular casing
ing, a perforated plate normally con?ned within said cas
having an inlet at one end and a series of circumferential
ing and being provided with a series of circumferentially
ly spaced inwardly directed lugs remote from said inlet, a
spaced peripheral notches and with an intervening series
plate normally con?ned within said casing and being pro 55 of circumferentially spaced peripheral sockets, the spacing
vided with a series of circumferentially spaced peripheral
of said notches and said sockets being the same as that of
notches and with an intervening series of circumferential
said lugs, and a helical compression spring interposed be
ly spaced peripheral sockets, the spacing of said notches
tween said plate and said ball member for simultaneously
and said sockets being the same as that of said lugs, and
retaining the ball against said casing seat and said casing
resilient means interposed between said plate and said 60 lugs seated within said plate sockets, said plate being ro
inlet end for retaining said casing lugs seated within said
tatable to align said notcheswith said lugs for free inser
plate sockets.
tion or removal of the plate through said open casing end
2. A liquid spray head comprising, a tubular casing
when forced inwardly to compress said spring and release
having a ball seat at one end and a series of circumfer
said lugs from said sockets.
entially spaced inwardly directed lugs remote from said 65
6. A liquid spray head comprising, a tubular casing
ball seat, a hollow ball member coacting with said casing
having an inlet at one end and a series of circumferentially
seat to provide a universally adjustable liquid admission
spaced inwardly directed lugs remote from said inlet, a
support for said casing, a plate normally con?ned within
plate normally con?ned within said casing and being pro
said casing and being provided with a series of circum
vided with a series of circumferentially spaced peripheral
ferentially spaced peripheral notches and with an in
notches and with an intervening series of circumferentially
tervening series of circumferentially spaced peripheral
spaced peripheral sockets, the spacing of said notches and
sockets, the spacing of said notches and said sockets being
said sockets being the same as that of said lugs, resilient
the same as that of said lugs, resilient means interposed
means interposed between said plate and said inlet end for
between said plate and said ball member for simultane
retaining said casing lugs seated within said plate sockets,
ously retaining the ball against said casing seat and said 75 a liquid spray discharge regulating disk adjustably secured
5
to said plate and cooperable with said casing remote from
said inlet to vary the discharge spray, and means on said
disk coacting with said plate and accessible only from said
inlet end for preventing displacement thereof from said
plate.
7. A liquid spray head comprising, a tubular casing
having an inlet end and a series of equally circumferential
6
opposite end to retain said lugs within said sockets, and a
liquid spray discharge regulating disk adjustably secured
to said plate and coacting with said opposite casing end,
said plate being freely insertable within and removable
from said opposite casing end when the plate is forced in
wardly to release said lugs from said sockets and is rotated
to bring said notches in alinement with the plate notches.
15/ spaced inwardly directed lugs near its opposite open end,
References Cited in the ?le of this patent
a plate normally con?ned Within said casing but being ro
10
UNITED STATES PATENTS
tatable and provided with a series of circumt’erentially
spaced peripheral notches and with an intervening series
Re. 23,646
Burdick ______________ __ Apr. 21, 1953
of circumferentially spaced peripheral sockets, the spacing
2,680,649
of said notches and sockets being the same as that of said
2,690,930
Corson ___________ _'____ Oct. 5, 1954
lugs, a helical compression spring interposed between said
plate and said inlet end for urging said plate toward said
2,756,108
3,003,650
Warren ______________ __ July 24, 1956
Prokop ______________ __ Nov. 14, 1961
Hansen ______________ __ June 8, 1954
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